LT1-LT4 Modifications 1993-97 Gen II Small Block V8

just installed h/c package runnuning rich

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Old 03-15-2007, 03:27 AM
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Default just installed h/c package runnuning rich

just installed le2 package with 37lb inj, 58mm tb, new o2 sens, elec wp, double roller t c ,1.6 rr, madz28 tune, plugs , wires, opti,

trouble is the car is burning so rich it will burn your eyes and fuel is getting in the oil! when you shut it off you have to have your foot to the floor to get it to start. throwing no codes what could this be????

in the tune they desensitzed the knock sensor also . i'm lost
Old 03-15-2007, 03:32 AM
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Is it running rich in open loop, closed loop, or both?
Old 03-15-2007, 05:35 PM
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Just runnin' fat..Getter' leaned out. Thats a problem with mail order tunes. They make them a little fatter than usual, for their sake. (insurance).
Old 03-15-2007, 05:47 PM
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Get a dyno tune...
Old 03-15-2007, 05:51 PM
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No offense to Ion but he hasn't nailed the tune for LE setups. Mine was waaaaaaaay off also and would load up bad at idle. Fouled out a set of plugs in a week. Get it tuned properly.
Old 03-15-2007, 07:43 PM
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Just make sure that tune is good for those injectors because if it isn't, you got a headache.
Old 03-15-2007, 07:54 PM
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He had the tune made to the parts he ordered including the injectors. The car will not idle at all I believe.

I had this problem with the typhoon when I first installed the engine (filled oilpan with fuel). Mine turned out to be the fuel preasure regulator had the vaccum lines wrong I think. It has been a few years.

Last edited by tnsyty; 03-15-2007 at 07:59 PM.
Old 03-16-2007, 11:49 AM
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mine will idle for 30 seconds then die cause it flooded itself with so much fuel, can that be from the tune?
Old 03-16-2007, 05:25 PM
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Yep, sure can.
Old 03-16-2007, 06:20 PM
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Had the same problem with my mail order tune.
The tuner said that that it must be something wrong with my car to not want the fuel.

I ended up tuning it locally so it would run properly with a friend's laptop then taking it to Tulsa for a dyno tune.
Runs much better now

Now, assuming that you've verified that your plugs are firing, your fuel lines
are properly connected and that the injectors are properly seated, that
would be something to look at.
You did degree that cam, right? And you didn't play with an AFPR, right?
Old 03-16-2007, 11:40 PM
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I hope you can get it tuned soon. I want to see how it does against a certain LS2 GTO, lol.

So a lot of the mail order tunes are so far off that they will run rich enough to get fuel into the oilpan. That sux!
Old 03-16-2007, 11:50 PM
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mail order tunes will be okay but get someone with a laptop to really see whats going on.. if your running too rich you will continue to keep fouling plugs..
Old 03-17-2007, 12:04 AM
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Originally Posted by getdrugtoday
mail order tunes will be okay but get someone with a laptop to really see whats going on.. if your running too rich you will continue to keep fouling plugs..
Well, his car won't stay running at all. It won't even back out of the garage.




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